Cephalosporin antibiotics
US4336253A · kind A · utility
20Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1981 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Mar 11, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cephalosporin antibiotics represented by the formula ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.4 alkyl or a carboxy substituted alkyl group; R.sub.1 is H or C.sub.1 -C.sub.4 alkyl; n is 0, 1 or 2; and A and A' independently are hydrogen, C.sub.1 -C.sub.4 alkyl or allyl; and pharmaceutically acceptable salts thereof are broad spectrum antibiotics useful in the treatment of gram positive and gram negative infections of mammals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.